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Finding the Fourth Proportional to 64,706.82, 97,193.07 and 42,551.70

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Solution

The fourth proportional to 64,706.82, 97,193.07 and 42,551.70 is: 63,914.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,706.82 : 97,193.07 = 42,551.70 : x
  2. Step 2: Convert to fraction form
    64,706.82/97,193.07 = 42,551.70/x
  3. Step 3: Cross multiply
    64,706.82x = 97,193.07 × 42,551.70
  4. Step 4: Simplify right side
    64,706.82x = 4,135,730,356.72
  5. Step 5: Solve for x
    x = 4,135,730,356.72/64,706.82
  6. Step 6: Final answer
    x = 63,914.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.